20111122210222 has 8 divisors (see below), whose sum is σ = 30548540066400. Its totient is φ = 9928275521424.

The previous prime is 20111122210217. The next prime is 20111122210237. The reversal of 20111122210222 is 22201222111102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20111122210222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20111122210222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63642791647 + ... + 63642791962.

It is an arithmetic number, because the mean of its divisors is an integer number (3818567508300).

Almost surely, 2^{20111122210222} is an apocalyptic number.

20111122210222 is a deficient number, since it is larger than the sum of its proper divisors (10437417856178).

20111122210222 is a wasteful number, since it uses less digits than its factorization.

20111122210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127285583690.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20111122210222 its reverse (22201222111102), we get a palindrome (42312344321324).

The spelling of 20111122210222 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, two hundred twenty-two".